body {
    display: flex;
    flex-direction: column;
}

.u2 {
    width: 100px;
    float: left;
    margin-top: 4px;
}
.img-element{
    float: right;
    margin-right: 40px;
    margin-top: -2px;
}
.u3 {
    display: flex;
    align-items: center;
    padding: 10px 100px;
}

.u3 span {
    margin-left: 20px;
}

.u1 {
    float: right;
    width: 20%;
    margin-top: 10px;
}

.u4 {
    float: left;
    width: 80%;
}



.zhengwen {
    padding: 20px 100px;
}

.a1 {
    text-align: center;
    margin-top: 50px;
}

.a1 span {
    margin: 0 100px 0 100px;
}

.a2 {
    width: 590px;
    margin-top: 20px;
}



.a3 {
    width: 90px;
}

.a4 {
    float: left;
}

.a5 {
    margin-top: 20px;
}

h1 {
    text-align: center;
    font-size: 40px;
}

.a6 {
    width: 80%;
}

.a7 {
    color: rgb(73, 73, 240);
}

.pr {
    background-color: #ffb900;
}

.a8 {
    float: left;
    width: 60%;

}

.goumai {
    float: right;
    margin-top: 20px;
    width: 35%;
}

a:link {
    color: #007BFF;
    text-decoration: none;
}

a:visited {
    color: #6C757D;
    text-decoration: none;
}

a:hover {
    color: #FFC107;
    text-decoration: underline;
}

a:active {
    color: #DC3545;
    text-decoration: none;
}

.a9 {
    font-size: 16px;
    background-color: #b5c2ce;
    height: 30px;
    line-height: 30px;
    text-align: center;
}

.config-item {
    margin: 20px 0;
}

.config-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
}

.option-box {
    border: 2px solid #ccc;
    padding: 20px;
    margin: 10px 0;
    height: 30px;
    line-height: 30px;
}

.option-box.checked {
    border-color: #0066cc;
    border-width: 3px;
    height: 30px;
}

.price {
    float: right;
}

.in {
    color: red;
    margin-top: -20px;
}

.b3 {
    margin-top: -15px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

.spec-title {
    color: #0066cc;
    text-decoration: underline;
}

.spec-item {
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 20px;
    margin-bottom: 20px;
    position: relative;
}

.discount-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: #ffcc00;
    padding: 5px 10px;
    border-radius: 3px;
}

.price-info {
    text-align: right;
    margin-top: 10px;
}

.price-info p {
    margin: 5px 0;
}

.service-desc {
    font-size: 20px;
    line-height: 60px;
    margin-bottom: 20px;
}

.service-item {
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 15px;
    margin-bottom: 15px;
}

.service-name {
    font-size: 20px;
    margin-bottom: 5px;
}

.price-group {
    text-align: right;
    font-size: 14px;
}

.price-group p {
    margin: 5px 0;
    color: #333;
}

.product-name {
    font-size: 1.2em;
    font-weight: bold;
}

.price-right {
    float: right;
    color: #666;
}

.current-price {
    color: #0066cc;
    font-weight: bold;
}

.subtotal {
    margin: 20px 0;
    font-size: 16px;
}

.original-price {
    text-decoration: line-through;
    margin-right: 5px;
}

.installment {
    text-align: right;
    margin-top: 5px;
}

.recommendation {
    display: flex;
    align-items: center;
    margin: 20px 0;
}

.icon {
    width: 40px;
    height: 40px;
    background: #000;
    border-radius: 50%;
    margin-right: 10px;
}

.primary-btn {
    background: #0066cc;
    color: white;
    padding: 15px;
    text-align: center;
    text-decoration: none;
}

.btn-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.secondary-btn {
    border: 1px solid #0066cc;
    color: #0066cc;
    padding: 15px;
    text-align: center;
    text-decoration: none;
}

.b4 {
    padding: 20px 100px;
}

.footer-container {
    display: flex;
    margin: 0 auto;
    background-color: #f8f8f8;
}

.footer-column {
    margin-left: 80px;
}

.footer-column:last-child {
    margin-right: 0;
}

.column-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 15px;
}

.column-list {
    list-style: none;
    padding: 0;
}

.column-list li {
    margin-bottom: 10px;
}

.column-list a {
    color: #333;
    text-decoration: none;
}

.x1 {
    float: left;
    padding: 0 50px;
    background-color: #f5f5f5;
    width: 93%;
}